MCP1541-ITO_技术文档

MCP1525/41

2.5V and 4.096V Voltage References

Features

Description

• Precision Voltage Reference

The Microchip Technology Inc. MCP1525/41 devices

are 2.5V and 4.096V precision voltage references that

use a combination of an advanced CMOS circuit

design and EPROM trimming to provide an initial

tolerance of ±1% (max.) and temperature stability of

±50 ppm/°C (max.). In addition to a low quiescent

current of 100 µA (max.) at 25°C, these devices offer a

clear advantage over the traditional Zener techniques

in terms of stability across time and temperature. The

output voltage is 2.5V for the MCP1525 and 4.096V for

the MCP1541. These devices are offered in SOT-23-3

and TO-92 packages, and are specified over the

industrial temperature range of -40°C to +85°C.

• Output Voltages: 2.5V and 4.096V

• Initial Accuracy: ±1% (max.)

• Temperature Drift: ±50 ppm/°C (max.)

• Output Current Drive: ±2 mA

• Maximum Input Current: 100 µA @ +25°C (max.)

• Packages: TO-92 and SOT-23-3

• Industrial Temperature Range: -40°C to +85°C

Applications

• Battery-powered Systems

• Handheld Instruments

Temperature Drift

• Instrumentation and Process Control

• Test Equipment

2.525

2.520

2.515

2.510

2.505

2.500

2.495

2.490

2.485

2.480

2.475

4.140

4.130

4.120

4.110

4.100

4.090

4.080

4.070

4.060

4.050

4.040

• Data Acquisition Systems

• Communications Equipment

• Medical Equipment

MCP1541

• Precision Power supplies

• 8-bit, 10-bit, 12-bit A/D Converters (ADCs)

• D/A Converters (DACs)

MCP1525

Typical Application Circuit

-50 -25

0

25 50 75 100

Ambient Temperature (°C)

V_DD

MCP1525

MCP1541

C_IN

Package Types

V_IN

MCP1525

MCP1541

TO-92

MCP1525

MCP1541

SOT-23-3

0.1 µF

(optional)

V_SS

V_OUT

V_REF

V_IN

1

C_L

1 µF to 10 µF

V_SS

3

V_OUT

2

Basic Configuration

1

2

3

V_SS

V_OUT

V_IN

DS21653B-page 1

MCP1525/41

† Notice: Stresses above those listed under “Absolute

Maximum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operational listings of this specification is not

implied. Exposure to maximum rating conditions for extended

periods may affect device reliability.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

V

– V ..........................................................................7.0V

SS

IN

Input Current (V ) .......................................................20 mA

IN

Output Current (V

) .............................................. ±20 mA

OUT

Continuous Power Dissipation (T = 125°C)............. 140 mW

A

All Inputs and Outputs .....................V – 0.6V to V + 1.0V

SS

IN

Storage Temperature.....................................-65°C to +150°C

Maximum Junction Temperature (T )..........................+125°C

J

ESD protection on all pins (HBM) .....................................≥ 4 kV

DC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, T = +25°C, V = 5.0V, V = GND, I

= 0 mA and C = 1 µF.

A

IN

SS

OUT

L

Parameter

Sym

Min

Typ

Max

Units

Conditions

Output

Output Voltage, MCP1525

Output Voltage, MCP1541

Output Voltage Drift

V

2.475

4.055

—

2.5

4.096

27

2.525

4.137

50

V

2.7V ≤ V ≤ 5.5V

OUT

IN

V

4.3V ≤ V ≤ 5.5V

OUT

IN

TCV

ppm/°C T = -40°C to 85°C (Note 1)

OUT

A

Long-Term Output Stability

V

—

2

—

ppm/hr Exposed 1008 hrs @ +125°C

(see Figure 1-1), measured @ +25°C

OUT

Load Regulation

ΔV

/ΔI

—

0.5

0.6

—

1

mV/mA

I

= 0 mA to -2 mA

= 0 mA to 2 mA

= 0 mA to -2 mA,

OUT OUT

OUT

/ΔI

OUT OUT

/ΔI

1.3

OUT OUT

T = -40°C to 85°C

A

ΔV

/ΔI

—

1.3

mV/mA

I

= 0 mA to 2 mA,

OUT OUT

OUT

T = -40°C to 85°C

A

Output Voltage Hysteresis

Maximum Load Current

Input-to-Output

V

—

115

±8

—

ppm

mA

Note 2

HYS

I

T = -40°C to 85°C, V = 5.5V

SC

A

IN

Dropout Voltage

V

—

137

107

—

mV

I

= 2 mA

DROP

OUT

Line Regulation

ΔV

/ΔV

300

µV/V

V

= 2.7V to 5.5V for MCP1525,

= 4.3V to 5.5V for MCP1541

OUT

IN

ΔV

/ΔV

—

350

µV/V

V

= 2.7V to 5.5V for MCP1525,

= 4.3V to 5.5V for MCP1541,

OUT

IN

T = -40°C to 85°C

A

Input

Input Voltage, MCP1525

Input Voltage, MCP1541

Input Current

V

2.7

4.3

—

86

95

5.5

V

T = -40°C to 85°C

A

IN

T = -40°C to 85°C

IN

A

I

100

120

µA

No load

—

No load, T = -40°C to 85°C

A

Note 1: Output temperature coefficient is measured using a “box” method, where the +25°C output voltage is trimmed as close

to typical as possible. The 85°C output voltage is then again trimmed to zero out the tempco.

2: Output Voltage Hysteresis is defined as the change in output voltage measured at +25°C before and after cycling the

temperature to +85°C and -40°C; refer to Section 1.1.10 “Output Voltage Hysteresis”.

DS21653B-page 2

MCP1525/41

AC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, T = +25°C, V = 5.0V, V = GND, I

= 0 mA and C = 1 µF.

A

IN

SS

OUT

L

Parameter

Sym

Min

Typ

Max

Units

Conditions

AC Response

Bandwidth

BW

—

100

—

kHz

Input and Load Capacitors (see Figure 4-1)

Input Capacitor

C

—

1

0.1

—

µF

Notes 1

Notes 2

IN

Load Capacitor

C

10

L

Noise

MCP1525 Output Noise Voltage

E

—

90

—

µV

0.1 Hz to 10 Hz

10 Hz to 10 kHz

0.1 Hz to 10 Hz

10 Hz to 10 kHz

no

P-P

500

145

700

MCP1541 Output Noise Voltage

Note 1: The input capacitor is optional; Microchip recommends using a ceramic capacitor.

2: These parts are tested at both 1 µF and 10 µF to ensure proper operation over this range of load capacitors. A wider

range of load capacitor values has been characterized successfully, but is not tested in production.

TEMPERATURE SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, T = +25°C, V = 5.0V and V = GND.

A

IN

SS

Parameter

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Specified Temperature Range

Operating Temperature Range

Storage Temperature Range

Thermal Package Resistances

Thermal Resistance, TO-92

Thermal Resistance, SOT-23-3

T

-40

-65

—

+85

+125

+150

°C

A

T

Note 1

A

T

A

θ

—

132

336

—

°C/W

JA

Note 1: These voltage references operate over the Operating Temperature Range, but with reduced performance. In any case,

the internal Junction Temperature (T ) must not exceed the Absolute Maximum specification of +150°C.

J

1.1.3

OUTPUT VOLTAGE DRIFT (TCV_OUT)

1.1

Specification Descriptions and

Test Circuits

The output temperature coefficient or voltage drift is a

measure of how much the output voltage (V_OUT) will

vary from its initial value with changes in ambient

temperature. The value specified in the electrical

specifications is measured and equal to:

1.1.1

OUTPUT VOLTAGE

Output voltage is the reference voltage that is available

on the output pin (V_OUT).

1.1.2

INPUT VOLTAGE

EQUATION 1-1:

The input (operating) voltage is the range of voltage

that can be applied to the V_INpin and still have the

device produce the designated output voltage on the

V_OUTpin.

ΔV_OUT⁄ V_NOM

------------------------------------

TCV_OUT

Where:

=

(ppm ⁄ °C)

ΔT_A

V_NOM= 2.5V, MCP1525

V_NOM= 4.096V, MCP1541

DS21653B-page 3

MCP1525/41

1.1.4

DROPOUT VOLTAGE

1.1.9

LONG-TERM OUTPUT STABILITY

The dropout voltage of these devices is measured by

reducing V_INto the point where the output drops by 1%.

Under these conditions the dropout voltage is equal to:

The long-term output stability is measured by exposing

the devices to an ambient temperature of 125°C

(Figure 2-9) while configured in the circuit shown in

Figure 1-1. In this test, all electrical specifications of the

devices are measured periodically at +25°C.

EQUATION 1-2:

V_DROP= V_IN– V_OUT

V_IN= 5.5V

The dropout voltage is affected by ambient

temperature and load current.

MCP1525

MCP1541

V_IN

V_OUT

In Figure 2-18, the dropout voltage is shown over a

negative and positive range of output current. For

currents above zero milliamps, the dropout voltage is

positive. In this case, the voltage reference is primarily

powered by V_IN. With output currents below zero

milliamps, the dropout voltage is negative. As the

output current becomes more negative, the input

current (I_IN) reduces. Under this condition, the output

current begins to provide the needed power to the

voltage reference.

R_L

C_L

1 µF

V_SS

±2 mA

square wave

@ 10 Hz

FIGURE 1-1:

Configuration.

Dynamic Life Test

1.1.10

OUTPUT VOLTAGE HYSTERESIS

The output voltage hysteresis is a measure of the

output voltage error once the powered devices are

cycled over the entire operating temperature range.

The amount of hysteresis can be quantified by

measuring the change in the +25°C output voltage after

temperature excursions from +25°C to +85°C to +25°C

and also from +25°C to -40°C to +25°C.

1.1.5

LINE REGULATION

Line regulation is a measure of the change in output

voltage (V_OUT) as a function of a change in the input

voltage (V_IN). This is expressed as ΔV_OUT/ΔV_INand is

measured in either µV/V or ppm. For example, a 1 µV

change in V_OUTcaused by a 500 mV change in V_IN

would net a ΔV_OUT/ΔV_INof 2 µV/V, or 2 ppm.

1.1.6

LOAD REGULATION (ΔV_OUT/ΔI_OUT)

Load regulation is a measure of the change in the

output voltage (V_OUT) as a function of the change in

output current (I_OUT). Load regulation is usually

measured in mV/mA.

1.1.7

INPUT CURRENT

The input current (operating current) is the current that

sinks from V_INto V_SSwithout a load current on the out-

put pin. This current is affected by temperature and the

output current.

1.1.8

INPUT VOLTAGE REJECTION

RATIO

The Input Voltage Rejection Ratio (IVRR) is a measure

of the change in output voltage versus the change in

input voltage over frequency, as shown in Figure 2-7.

The calculation used for this plot is:

EQUATION 1-3:

V_IN

IVRR = 20log

(dB)

-------------

V_OUT

DS21653B-page 4

MCP1525/41

2.0

TYPICAL PERFORMANCE CURVES

Note:

The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein

are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified

operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

Note: Unless otherwise indicated, T_A= +25°C, V_IN= 5.0V, V_SS= GND, I_OUT= 0 mA and C_L= 1 µF.

2.525

2.520

2.515

2.510

2.505

2.500

2.495

2.490

2.485

2.480

2.475

4.140

4.130

4.120

4.110

4.100

4.090

4.080

4.070

4.060

4.050

4.040

140

120

100

80

MCP1525

_IN= 2.7V to 5.5V

V

MCP1541

60

MCP1541

V_IN= 4.3V to 5.5V

MCP1525

40

20

0

-50 -25

0

25 50 75 100

-50

-25

0

25

50

75

100

Ambient Temperature (°C)

FIGURE 2-1:

Output Voltage vs. Ambient

FIGURE 2-4:

Line Regulation vs. Ambient

Temperature.

7

1.0

MCP1525 and MCP1541

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

6

5

4

3

2

1

0

Source Current =

0 mA to 2 mA

I_OUT= +2 mA

Sink Current =

0 mA to -2 mA

I_OUT= -2 mA

-50

-25

0

25

50

75

100

1

10

100

1k

10k

100k

1M

1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06

Frequency (Hz)

Ambient Temperature (°C)

FIGURE 2-2:

Load Regulation vs.

FIGURE 2-5:

Output Impedance vs.

Ambient Temperature.

Frequency.

1,000

100

MCP1541

90

80

70

60

50

40

30

20

10

0

MCP1541

MCP1525

100

10

1

MCP1525

0.1

1

10

100

1k

10k 100k

-50

-25

0

25

50

75

100

Frequency (Hz)

Ambient Temperature (°C)

FIGURE 2-3:

Input Current vs. Ambient

FIGURE 2-6:

Output Noise Voltage

Temperature.

Density vs. Frequency.

DS21653B-page 5

MCP1525/41

Note: Unless otherwise indicated, T_A= +25°C, V_IN= 5.0V, V_SS= GND, I_OUT= 0 mA and C_L= 1 µF.

90

80

70

60

50

40

30

4.0975

4.0970

4.0965

4.0960

4.0955

4.0950

MCP1541

MCP1525

MCP1541

-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0

Output Current (mA)

1

10

100

1k

10k

100k

1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05

Frequency (Hz)

FIGURE 2-7:

Input Voltage Rejection

FIGURE 2-10:

MCP1541 Output Voltage

Ratio vs. Frequency.

vs. Output Current.

2.506

2.505

2.504

4.098

4.097

4.096

2.5015

2.5010

2.5005

2.5000

2.4995

2.4990

MCP1525

I_OUT= +2 mA

I_OUT= 0 mA

I_OUT= -2 mA

2.503

2.502

2.501

2.500

2.499

2.498

4.095

4.094

4.093

4.092

4.091

4.090

-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0

Output Current (mA)

2.5 3.0 3.5 4.0 4.5 5.0 5.5

Input Voltage (V)

FIGURE 2-8:

Output Voltage vs. Input

FIGURE 2-11:

MCP1525 Output Voltage

Voltage.

vs. Output Current.

10

10.0

9.5

9.0

8.5

8.0

7.5

7.0

MCP1525

600 Samples

Life Test (T_A= +125°C)

MCP1541

Sink

8

6

4

+3σ

Average

-3σ

2

MCP1525

0

-2

-4

-6

-8

-10

MCP1541

Source

0

200

400

600

800

1000

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Time (hr)

Input Voltage (V)

FIGURE 2-9:

Output Voltage Aging vs.

FIGURE 2-12:

Maximum Load Current vs.

Time (MCP1525 Device Life Test data).

Input Voltage.

DS21653B-page 6

MCP1525/41

Note: Unless otherwise indicated, T_A= +25°C, V_IN= 5.0V, V_SS= GND, I_OUT= 0 mA and C_L= 1 µF.

100

90

80

70

60

50

40

30

20

10

0

4

2

35

30

25

20

15

10

5

MCP1541

MCP1525

I_OUT

0

-2

-4

-6

-8

-10

-12

-14

-16

-18

0

-5

ΔV_OUT

-10

-15

-20

MCP1525

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Input Voltage (V)

Time (100 µs/div)

FIGURE 2-13:

Input Current vs. Input

FIGURE 2-16:

MCP1525 Load Transient

Voltage.

Response.

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

16

14

12

10

8

6

4

2

0

-2

-4

-6

-8

MCP1541

Bandwidth = 0.1 Hz to 10 Hz

_no= 22 µV_RMS= 145 µV_P-P

E

V_IN

ΔV_OUT

MCP1525

0.0

Time (1 s/div)

Time (100 µs/div)

FIGURE 2-14:

MCP1541 0.1 Hz to 10 Hz

FIGURE 2-17:

MCP1525 Line Transient

Output Noise.

Response.

6

5

150

MCP1525 and MCP1541

V_IN

100

50

4

V_OUT, MCP1541

3

0

V_OUT, MCP1525

2

-50

-100

-150

1

0

-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0

Output Current (mA)

-1

Time (200 µs/div)

FIGURE 2-15:

Turn-on Transient Time.

FIGURE 2-18:

Dropout Voltage vs. Output

Current.

DS21653B-page 7

MCP1525/41

3.0

PIN DESCRIPTIONS

Descriptions of the pins are listed in Table 3-1.

TABLE 3-1: PIN FUNCTION TABLE.

MCP1525, MCP1541

Symbol

Description

(TO-92-3)

(SOT-23-3)

3

2

1

2

3

V_IN

V_OUT

V_SS

Input Voltage (or Positive Power Supply)

Output Voltage (or Reference Voltage)

Ground (or Negative Power Supply)

3.1

Input Voltage (V )

3.3

Ground (V

)

SS

IN

V_INfunctions as the positive power supply input (or

operating input). An optional 0.1 µF ceramic capacitor

can be placed at this pin if the input voltage is too noisy;

it needs to be within 5 mm of this pin. The input voltage

needs to be at least 0.2V higher than the output voltage

for normal operation.

Normally connected directly to ground. It can be placed

at another voltage as long as all of the voltages shift

with it, and proper bypassing is observed.

3.2

Output Voltage (V

)

OUT

V_OUTis an accurate reference voltage output. It can

source and sink small currents, and has a low output

impedance. A load capacitor between 1 µF and 10 µF

needs to be located within 5 mm of this pin.

DS21653B-page 8

MCP1525/41

4.1.4

PRINTED CIRCUIT BOARD LAYOUT

CONSIDERATIONS

4.0

APPLICATIONS INFORMATION

4.1

Application Tips

Mechanical stress due to Printed Circuit Board (PCB)

mounting can cause the output voltage to shift from its

initial value. Devices in the SOT-23-3 package are

generally more prone to assembly stress than devices

in the TO-92 package. To reduce stress-related output

voltage shifts, mount the reference on low-stress areas

of the PCB (i.e., away from PCB edges, screw holes

and large components).

4.1.1

BASIC CIRCUIT CONFIGURATION

The MCP1525 and MCP1541 voltage reference

devices should be applied as shown in Figure 4-1 in all

applications.

V_DD

MCP1525

MCP1541

4.1.5

OUTPUT FILTERING

C_IN

If the noise at the output of these voltage references is

too high for the particular application, it can be easily

filtered with an external RC filter and op amp buffer.

The op amp’s input and output voltage ranges need to

include the reference output voltage.

V_IN

0.1 µF

(optional)

V_SS

V_OUT

V_REF

C_L

V_DD

1 µF to 10 µF

MCP1525

MCP1541

FIGURE 4-1:

Basic Circuit Configuration.

V_DD

R_FIL

10 kW

V_IN

As shown in Figure 4-1, the input voltage is connected

to the device at the V_INinput, with an optional 0.1 µF

ceramic capacitor. This capacitor would be required if

the input voltage has excess noise. A 0.1 µF capacitor

would reject input voltage noise at approximately

1 to 2 MHz. Noise below this frequency will be amply

rejected by the input voltage rejection of the voltage ref-

erence. Noise at frequencies above 2 MHz will be

beyond the bandwidth of the voltage reference and,

consequently, not transmitted from the input pin

through the device to the output.

V_OUT

V_SS

V_REF

C_L

10 µF

C_FIL

1 µF

MCP6021

FIGURE 4-2:

Filter.

Output Noise-Reducing

The RC filter values are selected for a desired cutoff

frequency:

The load capacitance (C_L) is required in order to

stabilize the voltage reference; see Section 4.1.3

“Load Capacitor”.

EQUATION 4-1:

1

------------------------------

f_C

=

2πR_FILC_FIL

4.1.2

The MCP1525 and MCP1541 voltage references do

not require an input capacitor across V_INto V_SS

However, for added stability and input voltage transient

noise reduction, 0.1 µF ceramic capacitor is

INPUT (BYPASS) CAPACITOR

The values that are shown in Figure 4-2 (10 kΩ and

1 µF) will create a first-order, low-pass filter at the

output of the amplifier. The cutoff frequency of this filter

is 15.9 Hz, and the attenuation slope is 20 dB/decade.

The MCP6021 amplifier isolates the loading of this low-

pass filter from the remainder of the application circuit.

This amplifier also provides additional drive, with a

faster response time than the voltage reference.

.

a

recommended, as shown in Figure 4-1. This capacitor

should be close to the device (within 5 mm of the pin).

4.1.3

LOAD CAPACITOR

The output capacitor from V_OUTto V_SSacts as a

frequency compensation for the references and cannot

be omitted. Use load capacitors between 1 µF and

10 µF to compensate these devices. A 10 µF output

capacitor has slightly better noise, and provides

additional charge for fast load transients, when

compared to a 1 µF output capacitor. This capacitor

should be close to the device (within 5 mm of the pin).

DS21653B-page 9

MCP1525/41

4.2.2

A/D CONVERTER REFERENCE

4.2

Typical Application Circuits

The MCP1525 and MCP1541 were carefully designed

to provide a voltage reference for Microchip’s 10-bit

and 12-bit families of ADCs. The circuit shown in

Figure 4-4 shows a MCP1541 configured to provide the

reference to the MCP3201, a 12-bit ADC.

4.2.1

NEGATIVE VOLTAGE REFERENCE

A

negative precision voltage reference can be

generated by using the MCP1525 or MCP1541 in the

configuration shown in Figure 4-3.

V

_DD= 5.0V

V_DD= 5.0V

10 µF

C_IN

0.1 µF

MCP1525

MCP1541

R₁

10 kΩ

0.1%

R₂

10 kΩ

0.1%

C_L

10 µF

V_IN

V_OUT

V_SS

V_OUT

V_SS

C_L

10 µF

V_REF

0.1 µF

MCP606

V_SS= - 5.0V

V_REF= -2.5V, MCP1525

IN+

IN–

V_IN

to PICmicro^®

Microcontroller

MCP3201

3

V_REF= -4.096V, MCP1541

FIGURE 4-4:

ADC Reference Circuit.

FIGURE 4-3:

Negative Voltage

Reference.

In this circuit, the voltage inversion is implemented

using the MCP606 and two equal resistors. The voltage

at the output of the MCP1525 or MCP1541 voltage

reference drives R₁, which is connected to the inverting

input of the MCP606 amplifier. Since the non-inverting

input of the amplifier is biased to ground, the inverting

input will also be close to ground potential. The second

10 kΩ resistor is placed around the feedback loop of

the amplifier. Since the inverting input of the amplifier is

high-impedance, the current generated through R₁will

also flow through R₂. As a consequence, the output

voltage of the amplifier is equal to -2.5V for the

MCP1525 and -4.1V for the MCP1541.

DS21653B-page 10

MCP1525/41

5.0

5.1

PACKAGING INFORMATION

Package Marking Information

3-Lead TO-92 (Leaded)

Example:

XXXXXX

XXYYWW

NNN

MCP

1525I

TO0544

256

3-Lead TO-92 (Lead Free)

Example:

XXXXXX

YWWNNN

MCP

1525I

e

3

TO^^

544256

3-Lead SOT-23-3

Example:

I-Temp

Code

Device

XXNN

VA25

MCP1525

MCP1541

VANN

VBNN

Note:

Applies to 3-Lead SOT-23.

Legend: XX...X Customer-specific information

Y

YY

WW

NNN

Year code (last digit of calendar year)

Year code (last 2 digits of calendar year)

Week code (week of January 1 is week ‘01’)

Alphanumeric traceability code

e

3

Pb-free JEDEC designator for Matte Tin (Sn)

*

This package is Pb-free. The Pb-free JEDEC designator (

can be found on the outer packaging for this package.

)

e3

Note: In the event the full Microchip part number cannot be marked on one line, it will

be carried over to the next line, thus limiting the number of available

characters for customer-specific information.

DS21653B-page 11

MCP1525/41

3-Lead Plastic Transistor Outline (TO) (TO-92)

E1

D

n

1

L

1

2

3

α

B

p

c

A

R

β

Units

INCHES*

NOM

MILLIMETERS

Dimension Limits

MIN

MAX

MIN

NOM

3

MAX

n

p

Number of Pins

3

Pitch

.050

.143

.186

.183

.090

.555

.017

.019

5

1.27

Bottom to Package Flat

Overall Width

A

E1

D

R

L

.130

.155

3.30

4.45

3.62

4.71

4.64

2.29

14.10

0.43

0.48

5

3.94

.175

.170

.085

.500

.014

.016

4

.195

.095

.610

.020

.022

6

4.95

2.41

15.49

0.51

0.56

6

Overall Length

4.32

2.16

12.70

0.36

0.41

4

Molded Package Radius

Tip to Seating Plane

Lead Thickness

Lead Width

c

B

α

Mold Draft Angle Top

Mold Draft Angle Bottom

β

2

3

4

2

3

4

*Controlling Parameter

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: TO-92

Drawing No. C04-101

DS21653B-page 12

MCP1525/41

3-Lead Plastic Small Outline Transistor (TT) (SOT23)

E

E1

2

B

p1

D

n

p

1

α

c

A

A2

A1

φ

β

L

Units

INCHES*

NOM

MILLIMETERS

Dimension Limits

MIN

MAX

MIN

NOM

MAX

n

p

Number of Pins

3

Pitch

.038

.076

.040

.037

.002

.093

.051

.115

.018

5

0.96

1.92

1.01

0.95

0.06

2.37

1.30

2.92

0.45

5

p1

Outside lead pitch (basic)

Overall Height

A

A2

A1

E

.035

.044

0.89

1.12

Molded Package Thickness

.035

.000

.083

.047

.110

.014

0

.040

.004

.104

.055

.120

.022

10

0.88

0.01

2.10

1.20

2.80

0.35

0

1.02

0.10

2.64

1.40

3.04

0.55

10

Standoff

§

Overall Width

Molded Package Width

Overall Length

E1

D

Foot Length

L

φ

Foot Angle

c

Lead Thickness

Lead Width

.004

.015

0

.006

.017

5

.007

.020

10

0.09

0.37

0

0.14

0.44

5

0.18

0.51

10

B

α

β

Mold Draft Angle Top

Mold Draft Angle Bottom

0

5

10

0

5

10

* Controlling Parameter

§ Significant Characteristic

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: TO-236

Drawing No. C04-104

DS21653B-page 13

MCP1525/41

NOTES:

DS21653B-page 14

MCP1525/41

APPENDIX A: REVISION HISTORY

Revision B (February 2005)

The following is the list of modifications:

1. Added bandwidth and capacitor specifications

(Section 1.0 “Electrical Characteristics”).

2. Moved Section 1.1 “Specification Descrip-

tions and Test Circuits” to the specifications

section (Section 1.0 “Electrical Characteris-

tics”).

3. Corrected plots in Section 2.0 “Typical Perfor-

mance Curves”.

4. Added Section 3.0 “Pin Descriptions”.

5. Corrected package markings in

Section 5.0 “Packaging Information”.

6. Added Appendix A: “Revision History”.

Revision A (July 2001)

• Original Release of this Document.

DS21653B-page 15

MCP1525/41

NOTES:

DS21653B-page 16

MCP1525/41

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

Examples:

PART NO.

Device

X

/XX

a)

MCP1525T-I/TT: Tape and Reel,

Temperature Package

Range

Industrial Temperature,

SOT23 package.

b)

c)

MCP1525-I/TO: Industrial Temperature,

TO-92 package.

Device

MCP1525:

MCP1541:

=

2.5V Voltage Reference

4.096 Voltage Reference

MCP1541T-I/TT: Tape and Reel,

Industrial Temperature,

SOT23 package.

Temperature Range

Package

I

=

-40°C to +85°C

d)

MCP1541-I/TO: Industrial Temperature,

TO-92 package.

TO

TT

=

TO-92, Plastic Transistor Outline, 3-Lead

SOT23, Plastic Small Outline Transistor, 3-Lead

DS21653B-page 17

MCP1525/41

NOTES:

DS21653B-page 18

Note the following details of the code protection feature on Microchip devices:

•

Microchip products meet the specification contained in their particular Microchip Data Sheet.

•

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

•

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

•

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR WAR-

RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,

WRITTEN OR ORAL, STATUTORY OR OTHERWISE,

RELATED TO THE INFORMATION, INCLUDING BUT NOT

LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,

MERCHANTABILITY OR FITNESS FOR PURPOSE.

Microchip disclaims all liability arising from this information and

its use. Use of Microchip’s products as critical components in

life support systems is not authorized except with express

written approval by Microchip. No licenses are conveyed,

implicitly or otherwise, under any Microchip intellectual property

rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,

dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,

PRO MATE, PowerSmart, rfPIC, and SmartShunt are

registered trademarks of Microchip Technology Incorporated

in the U.S.A. and other countries.

AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,

PICMASTER, SEEVAL, SmartSensor and The Embedded

Control Solutions Company are registered trademarks of

Microchip Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, dsPICDEM,

dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,

FanSense, FlexROM, fuzzyLAB, In-Circuit Serial

Programming, ICSP, ICEPIC, MPASM, MPLIB, MPLINK,

MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail,

PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB,

rfPICDEM, Select Mode, Smart Serial, SmartTel and Total

Endurance are trademarks of Microchip Technology

Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 quality system certification for

its worldwide headquarters, design and wafer fabrication facilities in

Chandler and Tempe, Arizona and Mountain View, California in

October 2003. The Company’s quality system processes and

procedures are for its PICmicro^®8-bit MCUs, KEELOQ^®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

DS21653B-page 19

WORLDWIDE SALES AND SERVICE

AMERICAS

ASIA/PACIFIC

EUROPE

Corporate Office

Australia - Sydney

Tel: 61-2-9868-6733

Fax: 61-2-9868-6755

India - Bangalore

Tel: 91-80-2229-0061

Fax: 91-80-2229-0062

Austria - Weis

Tel: 43-7242-2244-399

Fax: 43-7242-2244-393

2355 West Chandler Blvd.

Chandler, AZ 85224-6199

Tel: 480-792-7200

Fax: 480-792-7277

Technical Support:

http://support.microchip.com

Web Address:

www.microchip.com

China - Beijing

Tel: 86-10-8528-2100

Fax: 86-10-8528-2104

Denmark - Ballerup

Tel: 45-4450-2828

Fax: 45-4485-2829

India - New Delhi

Tel: 91-11-5160-8631

Fax: 91-11-5160-8632

China - Chengdu

Tel: 86-28-8676-6200

Fax: 86-28-8676-6599

France - Massy

Tel: 33-1-69-53-63-20

Fax: 33-1-69-30-90-79

Japan - Kanagawa

Tel: 81-45-471- 6166

Fax: 81-45-471-6122

Atlanta

China - Fuzhou

Tel: 86-591-8750-3506

Fax: 86-591-8750-3521

Germany - Ismaning

Tel: 49-89-627-144-0

Fax: 49-89-627-144-44

Korea - Seoul

Alpharetta, GA

Tel: 770-640-0034

Fax: 770-640-0307

Tel: 82-2-554-7200

Fax: 82-2-558-5932 or

82-2-558-5934

Italy - Milan

Tel: 39-0331-742611

Fax: 39-0331-466781

China - Hong Kong SAR

Tel: 852-2401-1200

Fax: 852-2401-3431

Boston

Singapore

Tel: 65-6334-8870

Fax: 65-6334-8850

Westford, MA

Tel: 978-692-3848

Fax: 978-692-3821

Netherlands - Drunen

Tel: 31-416-690399

Fax: 31-416-690340

China - Shanghai

Tel: 86-21-5407-5533

Fax: 86-21-5407-5066

China - Shenyang

Tel: 86-24-2334-2829

Fax: 86-24-2334-2393

Taiwan - Kaohsiung

Tel: 886-7-536-4818

Fax: 886-7-536-4803

Chicago

Itasca, IL

Tel: 630-285-0071

Fax: 630-285-0075

England - Berkshire

Tel: 44-118-921-5869

Fax: 44-118-921-5820

Taiwan - Taipei

Tel: 886-2-2500-6610

Fax: 886-2-2508-0102

Dallas

Addison, TX

China - Shenzhen

Tel: 86-755-8203-2660

Fax: 86-755-8203-1760

Tel: 972-818-7423

Fax: 972-818-2924

Taiwan - Hsinchu

Tel: 886-3-572-9526

Fax: 886-3-572-6459

China - Shunde

Detroit

Tel: 86-757-2839-5507

Fax: 86-757-2839-5571

Farmington Hills, MI

Tel: 248-538-2250

Fax: 248-538-2260

China - Qingdao

Tel: 86-532-502-7355

Fax: 86-532-502-7205

Kokomo

Kokomo, IN

Tel: 765-864-8360

Fax: 765-864-8387

Los Angeles

Mission Viejo, CA

Tel: 949-462-9523

Fax: 949-462-9608

San Jose

Mountain View, CA

Tel: 650-215-1444

Fax: 650-961-0286

Toronto

Mississauga, Ontario,

Canada

Tel: 905-673-0699

Fax: 905-673-6509

10/20/04

DS21653B-page 20


型号：	MCP1541-ITO
厂家：	MICROCHIP
描述：	2.5V and 4.096V Voltage References
文件：	总20页 (文件大小：285K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MCP1541-ITO [MICROCHIP]

相关型号：

MCP1541I/TO

MCP1541I/TT

MCP1541T-I

MCP1541T-I/TO

MCP1541T-I/TT

MCP1541T-ITT

MCP1601

MCP1601T-I/MS

MCP1601_13

MCP1602

MCP1602-120I/MS

MCP1602-150I/MF